Smartphones and tablets have not just changed the way we shop online, they are also having an impact in brick-and-mortar shops, as many shoppers are using them to compare prices and read product reviews. But shoppers aren’t the only ones doing a bit of intelligence work on the ground, the retailers are responding in kind.

The chair of the Intelligence Subcommittee of the Homeland Security Committee, Jane Harman, has a vulnerable network at her home, says Consumer Watchdog. It could have been breached by Google's Street View Wifi gathering - or anyone else, for that matter.